#ifndef __XIOS_MPI_TOOLS_HPP__
#define __XIOS_MPI_TOOLS_HPP__

#include <string>
#include <map>

namespace xios
{

  int MPI_Bcast_string(std::string& str, int root, MPI_Comm comm) ;

  template<typename T> 
  MPI_Datatype MPI_GetType(void) ;

  template<> 
  MPI_Datatype MPI_GetType<bool>(void) ;

  template<>
  MPI_Datatype MPI_GetType<char>(void);

  template<>
  MPI_Datatype MPI_GetType<short int>(void);

  template<>
  MPI_Datatype MPI_GetType<int>(void);

  template<>
  MPI_Datatype MPI_GetType<size_t>(void);

  template<>
  MPI_Datatype MPI_GetType<float>(void);

  template<>
  MPI_Datatype MPI_GetType<double>(void);

  template<>
  MPI_Datatype MPI_GetType<long double>(void);

  class CCommTrack
  {
    private:
    static std::map<MPI_Comm,std::string> commTrack_ ;
    
    public:
    static void registerComm(const MPI_Comm& comm) ;

    static void releaseComm(const MPI_Comm& comm) ;

    static void dumpComm(void) ;

    static const std::map<MPI_Comm,std::string>& getCommTrack(void) {return commTrack_ ;}
  } ;
} 
#endif